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openclaw - ✅(Solved) Fix [Bug]: Discord threads unconditionally inherit parent channel session history [1 pull requests, 2 comments, 3 participants]

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openclaw/openclaw#69907•Fetched 2026-04-22 07:46:46
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samlegussamlegus
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MaiHHConnectMaiHHConnectrafiki270rafiki270samlegussamlegus
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Discord thread sessions fork the entire parent channel transcript into every new thread, causing:

Context pollution between unrelated threads Cumulative context bloat (observed 1.2m tokens against a 200k window) No user-facing config to disable this behavior Slack has threadInheritParent (defaults to false). Discord has no equivalent — it always forks.

Root Cause

Discord thread sessions fork the entire parent channel transcript into every new thread, causing:

Context pollution between unrelated threads Cumulative context bloat (observed 1.2m tokens against a 200k window) No user-facing config to disable this behavior Slack has threadInheritParent (defaults to false). Discord has no equivalent — it always forks.

PR fix notes

PR #69986: [codex] fix(discord): make thread parent inheritance opt-in

Description (problem / solution / changelog)

Summary

This makes Discord thread parent-session inheritance opt-in instead of unconditional.

By default, Discord thread sessions now start isolated from their parent channel/forum transcript. Setting channels.discord.thread.inheritParent: true restores the previous behavior when that transcript carry-over is explicitly desired.

Root Cause

Discord thread handling always attached ParentSessionKey for both:

  • existing Discord thread channels
  • newly auto-created Discord threads

That caused every thread session to fork from the parent channel/forum transcript with no Discord-side config to disable it, unlike Slack's thread.inheritParent.

What Changed

  • added Discord config support for thread.inheritParent
  • gated ParentSessionKey assignment in both Discord thread-session paths
  • updated Discord config hints and bundled channel metadata to surface the new setting
  • updated tests so isolated threads are the default and parent inheritance is only asserted when explicitly enabled

Impact

  • Discord threads no longer inherit parent-channel history by default
  • unrelated threads stay isolated and avoid parent transcript bloat
  • users who want the old behavior can opt back in with channels.discord.thread.inheritParent: true

Validation

  • env COREPACK_HOME=/tmp/corepack corepack pnpm exec vitest run -c test/vitest/vitest.extension-discord.config.ts discord/src/config-schema.test.ts
  • env COREPACK_HOME=/tmp/corepack corepack pnpm exec vitest run -c test/vitest/vitest.contracts-plugin.config.ts src/plugins/contracts/config-footprint-guardrails.test.ts
  • schema smoke checks for top-level and accounts.* thread.inheritParent
  • bundled Discord metadata smoke check for thread.inheritParent

Notes

Some Discord threading-oriented test files are currently blocked in this local environment by an undici/webidl startup failure before the suites execute, so this PR is opened as draft pending upstream CI.

Closes #69907

Changed files

  • extensions/discord/src/config-schema.test.ts (modified, +24/-0)
  • extensions/discord/src/config-ui-hints.ts (modified, +4/-0)
  • extensions/discord/src/monitor.tool-result.accepts-guild-messages-mentionpatterns-match.e2e.test.ts (modified, +35/-6)
  • extensions/discord/src/monitor/message-handler.process.ts (modified, +6/-1)
  • extensions/discord/src/monitor/monitor.threading-utils.test.ts (modified, +42/-8)
  • extensions/discord/src/monitor/threading.ts (modified, +13/-7)
  • src/config/bundled-channel-config-metadata.generated.ts (modified, +22/-0)
  • src/config/types.discord.ts (modified, +7/-0)
  • src/config/zod-schema.providers-core.ts (modified, +7/-0)

Code Example

Contact me directly if they're needed - I'd need to sanitize them.
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Bug type

Behavior bug (incorrect output/state without crash)

Beta release blocker

No

Summary

Discord thread sessions fork the entire parent channel transcript into every new thread, causing:

Context pollution between unrelated threads Cumulative context bloat (observed 1.2m tokens against a 200k window) No user-facing config to disable this behavior Slack has threadInheritParent (defaults to false). Discord has no equivalent — it always forks.

Steps to reproduce

Have an agent active in a Discord channel (e.g. #neon) with existing conversation history Create a new Discord thread under that channel Send a message in the thread to trigger session creation Inspect the thread's .jsonl session file

Expected behavior

Thread session starts empty (or with only a lightweight context summary), isolated from the parent channel.

Actual behavior

Thread session file contains a full copy of the parent channel's conversation history. The session header includes "parentSession": "/path/to/parent.jsonl" and all parent messages are copied verbatim into the thread's .jsonl file.

Every subsequent thread under the same channel inherits the same stale content. Thread resets compound the issue — each reset re-forks from the parent, accumulating context across rotated session files.

OpenClaw version

2026.4.14

Operating system

Ubuntu 24.04

Install method

npm

Model

sonnet 4.6

Provider / routing chain

Sonnet 4.,6 + Gemini but htat's irrelevant, many models were used during threads, issue is discord/openclaw specific

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Contact me directly if they're needed - I'd need to sanitize them.

Impact and severity

message-handler-Dd4dpOpt.js lines ~517-555: Unconditionally sets parentSessionKey when a Discord thread is detected get-reply-DBfoq_6j.js lines ~2854-2876: Forks parent transcript into thread when parentSessionKey is set and forkedFromParent is false session-fork.runtime-DKjtvcfB.js: Creates branched session with full parent history Slack connector has threadInheritParent config (default: false) — Discord connector has no equivalent

Additional information

Technical Details message-handler-Dd4dpOpt.js lines ~517-555: Unconditionally sets parentSessionKey when a Discord thread is detected get-reply-DBfoq_6j.js lines ~2854-2876: Forks parent transcript into thread when parentSessionKey is set and forkedFromParent is false session-fork.runtime-DKjtvcfB.js: Creates branched session with full parent history Slack connector has threadInheritParent config (default: false) — Discord connector has no equivalent

extent analysis

TL;DR

To fix the issue, consider adding a configuration option similar to Slack's threadInheritParent to the Discord connector, allowing users to control whether new threads inherit the parent channel's transcript.

Guidance

  • Investigate the message-handler-Dd4dpOpt.js file, specifically lines ~517-555, to understand how the parentSessionKey is set when a Discord thread is detected.
  • Review the get-reply-DBfoq_6j.js file, lines ~2854-2876, to see how the parent transcript is forked into the thread when parentSessionKey is set and forkedFromParent is false.
  • Consider introducing a new configuration option in the Discord connector to control the inheritance of parent channel transcripts, similar to the threadInheritParent option in the Slack connector.
  • Evaluate the impact of this change on the session-fork.runtime-DKjtvcfB.js file, which creates branched sessions with full parent history.

Example

No code snippet is provided as the issue does not contain sufficient information to create a specific example.

Notes

The provided information suggests that the issue is specific to the Discord connector and the OpenClaw version 2026.4.14. The solution may require modifications to the Discord connector code and potentially other related files.

Recommendation

Apply a workaround by introducing a new configuration option in the Discord connector to control the inheritance of parent channel transcripts, similar to the threadInheritParent option in the Slack connector. This will allow users to control whether new threads inherit the parent channel's transcript, mitigating the issue of context pollution and cumulative context bloat.

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FAQ

Expected behavior

Thread session starts empty (or with only a lightweight context summary), isolated from the parent channel.

#conversation history#API routing#API middleware#SSR setup#ISR setup

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